Descriptive statistics for eye-tracking measures by group and visit
| Measure | Control | MAM | P value |
| Calibr trials V1* | M=5.0 (SD=1.3) | M=5.2 (SD=1.3) | 0.34 |
| Calibr trials V2* | M=5.5 (SD=1.1) | M=5.5 (SD=1.0) | 0.95 |
| X-axis calibr error V1 | M=0.7° (max=1.9) | M=0.8° (max=2.1) | 0.58 |
| X-axis calibr error V2 | M=0.7° (max=1.9) | M=0.6° (max=3.7) | 0.29 |
| Y-axis calibr error V1 | M=1.1° (max=3.6) | M=1.1° (max=4.0) | 0.91 |
| Y-axis calibr error V2 | M=1.1° (max=3.8) | M=1.1° (max=3.6) | 0.68 |
| SRT valid trials V1 | M=19 (range 10–31) | M=22 (range 10–38) | 0.03 |
| SRT valid trials V2 | M=22 (range 10–33) | M=23 (range 11–37) | 0.46 |
| SRT response p V1 | M=99.5% (range 88.9–100) | M=99.3% (range 81.3–100.0) | 0.58 |
| SRT response p V2 | M=99.4% (range 94.7–100.0) | M=99.2% (range 92.8–100.0) | 0.72 |
| SRT split-half ICC (V1) | ICC (A, 1)=0.60 (95% CI 0.37 to 0.76) | ICC (A, 1)=0.69 (95% CI 0.57 to 0.78) | |
| SRT test–retest ICC (V1–V2) | ICC (A, 1)=0.53 (95% CI 0.28 to 0.71) |
*Calibration data were missing for visit 1 (4 controls and 4 infants with MAM) and visit 2 (1 control and 5 MAM).
ICC, intraclass correlation coefficient; MAM, moderate acute malnutrition; response p, probability of a response to the saccade target on valid trials; SRT, saccadic reaction time; V1, visit 1; V2, visit 2.